M4 westbound at the Membury services between J14 and J15 | Westbound | Congestion

Location : The M4 westbound between junctions J14 and J15 . Reason : Congestion. Status : Currently Active. Return To Normal : Normal traffic conditions are expected between 12:45 and 13:00 on 19 January 2026. Delay : There are currently delays of 10 minutes against expected traffic.